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Add battery generation detection

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Daniel 2023-04-16 15:23:00 +03:00
parent 3f3f2c1593
commit 21aa656589
1 changed files with 27 additions and 17 deletions
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26
Software/Software.ino
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@ -34,6 +34,10 @@ CAN_frame_t LEAF_50C = {.FIR = {.B = {.DLC = 6,.FF = CAN_frame_std,}},.MsgID = 0
CAN_frame_t LEAF_1D4 = {.FIR = {.B = {.DLC = 8,.FF = CAN_frame_std,}},.MsgID = 0x1D4,.data = {0x6E, 0x6E, 0x00, 0x04, 0x07, 0x46, 0xE0, 0x44}};
//Nissan LEAF battery parameters from CAN
#define ZE0_BATTERY 0
#define AZE0_BATTERY 1
#define ZE1_BATTERY 2
uint8_t LEAF_Battery_Type = ZE0_BATTERY;
#define WH_PER_GID 77 //One GID is this amount of Watt hours
#define LB_MAX_SOC 1000 //LEAF BMS never goes over this value. We use this info to rescale SOC% sent to Fronius
#define LB_MIN_SOC 0 //LEAF BMS never goes below this value. We use this info to rescale SOC% sent to Fronius
@ -49,8 +53,8 @@ uint16_t LB_StateOfHealth = 99; //State of health %
uint16_t LB_Total_Voltage = 370; //Battery voltage (0-450V)
int16_t LB_Current = 0; //Current in A going in/out of battery
int16_t LB_Power = 0; //Watts going in/out of battery
int16_t LB_HistData_Temperature_MAX = 60; //-40 to 86*C
int16_t LB_HistData_Temperature_MIN = 50; //-40 to 86*C
int16_t LB_HistData_Temperature_MAX = 6; //-40 to 86*C
int16_t LB_HistData_Temperature_MIN = 5; //-40 to 86*C
uint8_t LB_Relay_Cut_Request = 0; //LB_FAIL
uint8_t LB_Failsafe_Status = 0; //LB_STATUS = 000b = normal start Request
//001b = Main Relay OFF Request
@ -164,6 +168,8 @@ void loop()
void update_values_leaf_battery()
{ //This function maps all the values fetched via CAN to the correct parameters used for modbus
bms_status = ACTIVE; //Startout in active mode
StateOfHealth = (LB_StateOfHealth * 100); //Increase range from 99% -> 99.00%
//Calculate the SOC% value to send to Fronius
@ -316,11 +322,8 @@ void update_values_leaf_battery()
LB_Power = LB_Total_Voltage * LB_Current;//P = U * I
stat_batt_power = convert2unsignedint16(LB_Power); //add sign if needed
LB_HistData_Temperature_MIN = (LB_HistData_Temperature_MIN * 10); //increase range to fit the Fronius
temperature_min = convert2unsignedint16(LB_HistData_Temperature_MIN); //add sign if needed
LB_HistData_Temperature_MAX = (LB_HistData_Temperature_MAX * 10); //increase range to fit the Fronius
temperature_max = convert2unsignedint16(LB_HistData_Temperature_MAX);
temperature_min = convert2unsignedint16((LB_HistData_Temperature_MIN * 10)); //add sign if needed and increase range
temperature_max = convert2unsignedint16((LB_HistData_Temperature_MAX * 10));
if(printValues)
{ //values heading towards the modbus registers
@ -502,7 +505,9 @@ void handle_can_leaf_battery()
}
LB_StateOfHealth = (rx_frame.data.u8[4] >> 1); //Collect state of health from battery
break;
case 0x5C0: //This method only works for 2011-2017 LEAF packs, the mux is different on 2018+ 40/62kWH packs
case 0x5C0: //This method only works for 2013-2017 AZE0 LEAF packs, the mux is different on other generations
if(LEAF_Battery_Type == AZE0_BATTERY)
{
if ((rx_frame.data.u8[0]>>6) == 1)
{ // Battery Temperature. Effectively has only 7-bit precision, as the bottom bit is always 0.
LB_HistData_Temperature_MAX = ((rx_frame.data.u8[2] / 2) - 40);
@ -513,6 +518,11 @@ void handle_can_leaf_battery()
LB_HistData_Temperature_MIN = ((rx_frame.data.u8[2] / 2) - 40);
//Serial.println(LB_HistData_Temperature_MIN);
}
}
break;
case 0x59E:
//AZE0 2013-2017 or ZE1 2018-2023 battery detected
LEAF_Battery_Type = AZE0_BATTERY;
break;
default:
break;